Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/32800
Title: Telephone interviews and online questionnaires can be used to improve neurodevelopmental follow-up rates
Authors: Johnson, Samantha
Seaton, Sarah E.
Manktelow, Bradley N.
Smith, Lucy K.
Field, David
Draper, Elizabeth S.
Marlow, N.
Boyle, Elaine M.
First Published: 8-Apr-2014
Publisher: BioMed Central
Citation: BMC Research Notes, 2014, 7 : 219
Abstract: Background: Maximising response rates to neurodevelopmental follow-up is a key challenge for paediatric researchers. We have investigated the use of telephone interviews and online questionnaires to improve response rates, reduce non-response bias, maintain data completeness and produce unbiased outcomes compared with postal questionnaires when assessing neurodevelopmental outcomes at 2 years. Methods: A prospective cohort study of babies born ≥32 weeks gestation. Neurodevelopmental outcomes were assessed at 2 years of age using a parent questionnaire completed via post, telephone or online. Relative Risks with 95% confidence intervals (RR; 95% CI) were calculated to identify participant characteristics associated with non-response and questionnaire response mode (postal vs. telephone/online). The proportion of missing data and prevalence of adverse outcomes was compared between response modes using generalized linear models. Results: Offering telephone/online questionnaires increased the study response rate from 55% to 60%. Telephone/online responders were more likely to be non-white (RR 1.6; [95% CI 1.1, 2.4]), non-English speaking (1.6; [1.0, 2.6]) or have a multiple birth (1.6; [1.1, 2.3]) than postal responders. There were no significant differences in the prevalence of adverse neurodevelopmental outcomes between those who responded via post vs. telephone/online (1.1; [0.9, 1.4]). Where parents attempted all questionnaire sections, there were no significant differences in the proportion of missing data between response modes. Conclusions: Where there is sufficient technology and resources, offering telephone interviews and online questionnaires can enhance response rates and improve sample representation to neurodevelopmental follow-up, whilst maintaining data completeness and unbiased outcomes.
DOI Link: 10.1186/1756-0500-7-219
eISSN: 1756-0500
Links: http://www.biomedcentral.com/1756-0500/7/219
http://hdl.handle.net/2381/32800
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2014 Johnson et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Description: PMCID: PMC3983863
Appears in Collections:Published Articles, Dept. of Health Sciences

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